monkey wrench

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monkey wrench

a wrench with adjustable jaws

monkey wrench

[′məŋ·kē ‚rench]
(design engineering)
A wrench having one jaw fixed and the other adjustable, both of which are perpendicular to a straight handle.

monkey wrench

monkey wrench
A wrench having one jaw fixed and the other jaw (which is adjusted by a screw) movable.
References in periodicals archive ?
But adding lithium to the system, say by taking a pill of lithium carbonate, is like throwing thousands of molecular monkey wrenches into the turning PtdIns cycles of each cell.
Throwing monkey wrenches into the competition seems to be drawing more teams, as evidenced in the rise in popularity of the Castaic race.
He's doing Outback Steak House commercials with his Outback-sponsored tour bus on one channel (not ironically, during the Outback Bowl), monkeying around with monkey wrenches for Ace Hardware spots on another channel, and helping clear up the foot stench with a fast actin'-Tinactin skud on yet another channel.